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ID#4822 Higher Math 1st - Dinajpur - 2025 MCQ

$\sec^2(\tan^{-1} 2) + cosec^2(\cot^{-1} 3) = ?$

ID#4826 Higher Math 1st - Dinajpur - 2025 MCQ

যদি $\sin^{-1}(1/√5) = \cos^{-1} x$ হয়, তবে $x = ?$

ID#4833 Higher Math 1st - Dinajpur - 2025 MCQ

চিত্রে AB = 5m হলে, BC = কত মিটার?

ID#4834 Higher Math 1st - Dinajpur - 2025 MCQ

z = 5 + 12i হলে, z-bar এর বর্গমূল কত?